3178634

Information

• Patent Grant
• 3178634

• References
• Source

• Patent Number

  3,178,634

• Date Filed

  Not available

• Date Issued

  Tuesday, April 13, 1965
  60 years ago

• CPC

  • G05D23/224 - using selfs or transformers

• US Classifications

  • 323 - Electricity: power supply or regulation systems
  • 219 - Electric heating
  • 327 - Miscellaneous active electrical nonlinear devices, circuits, and systems